BOULDER — CU Buffs coach Deion Sanders isn’t shutting the door on a return to action for transfer and former Ohio State tailback Dallan Hayden. But how open that door is for the Baylor game this weekend at Folsom Field remains to be seen. “We don’t know where he is right now or what he wants to do,” Sanders said during his weekly news conference when asked for an update on Hayden, who didn’t play in the win over Colorado State last weekend.